參數(shù)資料
型號: XRD9825ACU
廠商: Exar Corporation
文件頁數(shù): 1/33頁
文件大?。?/td> 0K
描述: IC 16B CCD/CIS SIG PROC 20SSOP
產(chǎn)品變化通告: Leaded UART, V&I Obsolescence 11/Apr/2011
標準包裝: 66
位數(shù): 16
通道數(shù): 3
電壓 - 電源,模擬: 3 V ~ 5.5V
電壓 - 電源,數(shù)字: 3 V ~ 5.5 V
封裝/外殼: 20-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 20-SSOP
包裝: 管件
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538
(510) 668-7000 FAX (510) 668-7017 www.exar.com
XRD9825
16-Bit Linear CIS/CCD Sensor
Signal Processor with Serial Control
May 2000-3
FEATURES
16-Bit Resolution
One-channel 12MSPS Pixel Rate
Triple-channel 4MSPS Pixel Rate
6-BitProgrammableGainAmplifier
8-Bit Programmable Offset Adjustment
CIS or CCD Compatibility
Internal Clamp for CIS or CCD AC Coupled
Configurations
No Missing Codes at 10MHz ADC Clock
3.3V or 5V Operation & I/O Compatibility
SerialLoadControlRegisters
Low Power CMOS: 200mW-typ
Low Cost 20-Lead Packages
USBCompliant
APPLICATIONS
Color and Grayscale Flatbed Scanners
Color and Grayscale Sheetfed Scanners
MultifunctionPeripherals
DigitalColorCopiers
General Purpose CIS or CCD Imaging
Low Cost Data Acquisition
Simple and Direct Interface to Canon 600 DPI
Sensors
GENERAL DESCRIPTION
The XRD9825 is a complete linear CIS or CCD sensor
signal processor on a single monolithic chip. The
XRD9825 includes a high speed 16-bit resolution ADC,
a 6-bit Programmable Gain Amplifier with gain adjust-
ment of 1 to 10, and 8-bit programmable input referred
offset calibration range of 800mV.
In the CCD configuration the input signal is AC coupled
with an external capacitor. An internal clamp sets the
black level. In the CIS configuration, the clamp switch
can be disabled and the CIS output signal is DC
coupled from the CIS sensor to the XRD9825. The CIS
signal is level shifted to VRB in order to use the full
range of the ADC. In the CIS configuration the input can
also be AC coupled similar to the CCD configuration.
This enables CIS signals with large black levels to be
internally clamped to a DC reference equal to the black
level. The DC reference is internally subtracted from
the input signal.
The CIS configuration can also be used in other
applications that do not require CDS function, such as
low cost data acquisition.
Rev. 1.00
ORDERING INFORMATION
PackageType
TemperatureRange
PartNumber
20-LeadSOIC
0°C to +70°C
XRD9825ACD
20-LeadSSOP
0°C to +70°C
XRD9825ACU
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